【2026 Updated】SPHEREFIX SPCraft5 & SPCraft6 USVs:

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【2026 Updated】SPHEREFIX SPCraft5 & SPCraft6 USVs: Precision Solutions for Water Survey & Monitoring

3 February 2026

In water operations like hydrographic surveying, water-quality monitoring, and patrols, reliable USVs are game-changers. SPHEREFIX offers two standout models—SPCraft5 and SPCraft6—to meet diverse needs. Both blend smart navigation, durable design, and flexible expansion. Today, we’ll break down their core specs, key advantages, and real-world uses, helping you choose the right USV for your tasks.

1. Why SPHEREFIX SPCraft USVs Lead in Water Operations?

Water tasks face unique challenges: rough waves, limited access, and strict precision demands. SPHEREFIX SPCraft5 and SPCraft6 address these with targeted technical strengths, making them superior to basic USVs or manual boats.

First, their high-precision RTK positioning eliminates costly data errors. Second, intuitive controls and quick deployment save field time. Third, robust build quality and safety features ensure reliability in harsh water conditions. Whether you need a portable solution (SPCraft5) or a heavy-duty platform (SPCraft6), these USVs deliver safer, more efficient operations—key for professionals in environmental monitoring, hydrography, and rescue missions.

2. Core Technical Specs: SPCraft5 vs. SPCraft6 (2026)

Both USVs share SPHEREFIX’s signature precision and durability but cater to different use cases. Below is a clear breakdown of their key specs, with simple explanations for easy understanding.

2.1 Hull & Basic Design: Portable vs. Heavy-Duty

The hull design defines each USV’s versatility—SPCraft5 prioritizes portability, while SPCraft6 excels at heavy payloads.

SPCraft5: 980x520x254mm compact size; 30kg full-system weight; 35kg maximum payload. It uses high-molecular-weight polyethylene with Kevlar reinforcement for a lightweight yet rigid build. No assembly needed—unbox and deploy instantly.

SPCraft6: 1280x580x430mm larger frame; 40kg full-system weight; 50kg maximum payload. Its carbon fiber and Kevlar hull offers exceptional stability, supporting multiple large sensors at once.

Shared Advantages: IP67 waterproof/dustproof rating; Level 3 wind wave and Level 2 swell resistance—ideal for tough marine environments.

980x520x254mm compact size; 30kg full-system weight; 35kg maximum payload.

1280x580x430mm larger frame; 40kg full-system weight; 50kg maximum payload.

2.2 Navigation & Positioning: Centimeter-Level Precision

Accurate positioning is critical for water tasks, and both USVs deliver industry-leading results.

Satellite Support: Both support BDS, GPS, GLONASS, Galileo, and SBAS multi-constellation signals for reliable tracking.

RTK Accuracy: Horizontal 8mm+1ppm; Vertical 15mm+1ppm (SPCraft5); SPCraft6 boosts precision with multi-constellation support for ±8mm accuracy.

Key Features: Dual-antenna GNSS and integrated IMU for stable sailing; SPCraft5 cold start <30s; SPCraft6 initial fix <5s (10km range) for faster deployment.

USV Dual Antenna Module

Multi-constellation

2.3 Power & Propulsion: Long Endurance, Strong Performance

Both USVs feature hot-swappable batteries and powerful motors to handle extended missions.

SPCraft5: 33.6V 25Ah dual lithium batteries; 7-hour endurance at 1.5m/s; 38km range. 900W brushless motor (5300 RPM) delivers 7m/s maximum speed.

SPCraft6: 21700-cell hot-swappable batteries; 5-hour endurance; 38km range. 1100W brushless motor (7000 RPM) reaches 6m/s, with differential steering for precise control.

Shared Advantages: Plug-in propulsion for easy maintenance; stable operation in turbulent water and high currents.

SPCraft6 hot-swappable battery

SPCraft5 easy maintenance

2.4 Control & Connectivity: User-Friendly & Versatile

Intuitive controllers and flexible interfaces make both USVs easy to operate, even in harsh conditions.

SPCraft5: 7-inch sunlight-readable HD touchscreen; 3km communication range (unlimited via 4G); 20,000mAh controller battery (8-hour use).

SPCraft6: 12-inch bright touch terminal with physical buttons/joysticks; 4G/2.4G/UHF multi-mode communication; 8-hour controller battery with fast charge.

Shared Advantages: 2xRJ45, 2xRS232, 2xRS485 ports; Nano SIM slot; support for network CORS and standard differential protocols.

12-inch bright touch terminal

7-inch sunlight-readable HD touchscreen

2.5 Safety & Expandability: Adaptable to Missions

Safety features and expandability make both USVs suitable for diverse tasks, from monitoring to rescue.

Safety Functions: Automatic obstacle avoidance, shallow-water alerts, low-battery/signal-loss auto-return (both models). SPCraft6 adds panoramic night vision for 24/7 operations.

Expandability: Both support water-quality probes, sonar, and LiDAR; open SDK for secondary development. SPCraft6 acts as a “mobile waterborne laboratory” for multi-sensor integration.

Additional Tools: 360° camera (both); SPCraft5 obstacle radar (120°x120° beam, 0.1-20m range); SPCraft6 optional AI camera for target recognition.

360° camera

Automatic obstacle avoidance

3. How to Choose: SPCraft5 vs. SPCraft6 for Your Scenarios

Selecting the right USV depends on your mission needs—here’s a quick guide:

Choose SPCraft5 if you need portability and agility. It’s perfect for small-to-medium water areas: water depth measurement (echo sounder ±2cm accuracy), concealed-pipe investigations (side-scan sonar), and emergency patrols (fast deployment, 7-hour endurance).

Choose SPCraft6 for heavy-duty tasks. Its 50kg payload supports multibeam sonar, ADCP, and water-quality analyzers—ideal for hydrological research, large-area environmental monitoring, and search-and-rescue missions (stable in rough waves, night vision).

For water-quality sampling, both work well: SPCraft5 covers small lakes efficiently, while SPCraft6 handles large rivers or coastal areas with multiple sensors.

SPCraft6 Application Scenario

SPCraft5 Application Scenario

4. Key Advantages: Why SPHEREFIX SPCraft USVs Stand Out

Compared to competitors, SPCraft5 and SPCraft6 offer unique benefits that boost operational value:

Precision: Centimeter-level RTK positioning ensures reliable data for critical projects.

Durability: IP67 protection and Kevlar/carbon fiber hulls withstand harsh marine conditions.

Flexibility: Expandable platforms and open SDK adapt to changing mission requirements.

Safety: Autonomous safety features reduce human risk in dangerous water environments.

Efficiency: Hot-swappable batteries and quick deployment cut down operational time and costs.

5. Conclusion: SPCraft USVs—Your Trusted Partners for Water Operations

SPHEREFIX SPCraft5 and SPCraft6 redefine water operations with precision, durability, and versatility. Whether you need a portable solution for quick tasks or a heavy-duty platform for complex missions, these USVs deliver consistent, reliable performance.

From hydrographic surveying to environmental monitoring, they turn complex water tasks into streamlined workflows. Their technical specs address core industry needs, while user-friendly design ensures accessibility for both experienced professionals and new operators.

Here’s a question for you: Are you currently facing challenges with water survey efficiency, sensor integration, or harsh environment adaptability? Which scenario (e.g., water depth measurement, hydrological research) do you need a USV for most? Share your thoughts in the comments below—we’ll reply with tailored advice and detailed technical support!

SPCraft6 Actual operation scenario

SPCraft5 Actual operation scenario

For more details on specs, application tips, or to request a demo, visit www.spherefixgnss.com or email contact@spherefixgnss.com. Follow us for the latest updates on USV technology and water operation guides!

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